Skip to main content

Home/ Dr. Goodyear/ Group items tagged Advanced

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
spineneuro

Spinal Fusion Surgery in India: Cost-Saving Strategies for International Patients - 0 views

www.briefingwire.com/...ies-for-international-patients

spinal fusion surgery spinal fusion surgery cost top hospitals for spinal fusion in India

shared by spineneuro on 14 Jun 24 - No Cached
  • spineneuro on 14 Jun 24
     
    The cost of spinal fusion surgery at top hospitals in India is very economical, utilizing advanced treatment technologies. Many of these doctors have graduated from some of the best medical schools globally and are well-trained to perform minimally invasive procedures, ensuring shorter recovery times. Additionally, top hospitals for spinal fusion in India offer custom treatment plans tailored to the patient's budget.
wheelchairindia9

Karma Km 2500 Wheelchair - 0 views

www.wheelchaironlinebuy.in/...KM-2500-Small-Wheel-Wheelchair

Karma KM Wheelchair May Be Used For Traveling wheelchairs with hand brakes Km 2500 Wheelchair Karma Km 2500 Wheelchair Karma Km 2500 tend to spend a lot of time adjustable foot plates and armrests

shared by wheelchairindia9 on 15 Oct 15 - No Cached
  • wheelchairindia9 on 15 Oct 15
     
    Karma KM 2500 Small Wheel Wheelchair: Karma KM 2500 Small Wheel Wheelchair Specifications: Width 18" Front/Rear Wheels 6" to 14" Seat Width 47cm Seat Depth 40cm Overall Width 66cm Overall Collapsed Width 36cm Armrest Height 21cm Overall Length 90cm Seat Height 47cm Backrest Height 38cm Overall Height 86cm Weight 9.2 k.g. Karma KM 2500 Small Wheel Wheelchair Seat and Back: AEGIS Microbe Shield Approved by the FDA, EPA, EU, etc., bonded anti-microbial barrier upholstery protects from odor, staining and deterioration from bacteria, fungus and other microorganisms. It is a shield for your health. Karma KM 2500 Small Wheel Wheelchair Extended Armrest: By simulating the natural position of arms, the extended armrest design is ergonomic and creates bigger seating space. An Ultra lightweight wheelchair (9.2 kg) with a compact design for either attendant assisted or self propelling users. The use of aircraft-grade aluminium alloy and double cross brace provide this model with outstanding strength and durability. Karma Healthcare KM-2500 Premium Wheelchair is amazingly light and compact transit wheelchair which is ideal for outings and travelers. It folds down to take up virtually no space in the boot of a car and weighs just over 9.2 kg making it easy for anyone to lift into a vehicle. Backrest folds-down for easy transportation. Maximum user weight: 100 K.g. Aluminium frame. Fixed armrest/fixed footrest. Foldable frame via double cross bars. Comfortable & durable upholstery. Swing-away foot plates. Puncture proof tyres. Attendant cable brake. 14" flat-free rear wheels. Detachable and washable cushion. One Year Warranty. It folds down to take up virtually no space in the boot of a car. This amazingly light and compact transit wheelchair is ideal for outings and travelling. It comes with detachable and washable cushion. The wheel chair has attendant cable brake. It is made from aircraft-grade aluminium alloy fra
Nathan Goodyear

The Firmicutes/Bacteroidetes ratio of the human microbiota changes with age | BMC Micro... - 0 views

bmcmicrobiol.biomedcentral.com/...1471-2180-9-123

gut gut health gut flora gut microbiota firmicutes_bacteroidetes metabolism

shared by Nathan Goodyear on 09 Nov 16 - No Cached
  • C. leptum, C. coccoides, Bacteroides and Bifidobacterium represent the four dominant groups of the adult fecal microbiota
  • Lactobacilli Enterobacteriaceae, Desulfovibrio, Sporomusa, Atopobium as well as other bacterial groups including Clostridium clusters XI, XIVb, and XVIII
  • The Firmicutes/Bacteroidetes ratio undergoes an increase from birth to adulthood and is further altered with advanced age
  • Nathan Goodyear on 09 Nov 16
     
    good review/discussion of gut microbiota, including the firmicutes:bacteroidetes ratio.
wheelchairindia9

Tynor Wrist and Forearm Splint Right-Left - 0 views

www.wheelchairindia.com/...-and-Forearm-Splint-Right-Left

Wrist and Forearm Splints Causes and Recovery Period best orthopedic wrist braces comfortable support to hand muscular attachments to the bone hand side of the forearm Anatomical thumb opening

shared by wheelchairindia9 on 29 Mar 16 - No Cached
  • wheelchairindia9 on 29 Mar 16
     
    Tynor Wrist and Forearm Splint Right-Left Wrist and Forearm Splint is designed to immobilize and provide firm and comfortable support to hand and wrist in various orthopedic conditions. It maintains the wrist in the functional position. Aesthetically appealing. Customizable splint. Perfect immobilization. Controlled compression. Anatomical thumb opening. Tynor Wrist and Forearm Splint Right-Left Features Made out of PUF fused Matty fabric Breathable Excellent aesthetics Improved comfort Enhanced life. Removable, Aluminum Splints Customized fitting Required degree of dorsi-flexion can be achieved Very good grip and immobilization Design features Long length of the brace, ensures enhanced immobilization Brace abuts the Palmer crease , allows free finger movement. Elegant tabs , allow easy application and removal Elegant tabs, also enhance the aesthetics of the product. Black Color, enhances the aethetics Hook loop closures Easy to apply and remove Ensures optimal compression , Built in opening for thumb abduction Better pain relief and healing. Thumb remains relaxed, no fatigue Improves comfort Tynor Wrist and Forearm Splint Right-Left Measurements Measure the Circumference at a distance 6" from the wrist along the arm
Nathan Goodyear

Effect of a phase advance and phase delay of ... [Am J Clin Nutr. 2012] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...22914550

circadian rhythm sleep insulin glucose metabolism

shared by Nathan Goodyear on 06 Sep 12 - No Cached
  • Nathan Goodyear on 06 Sep 12
     
    small study. But it showed that disruption in circadian rhythm results in disruption of insulin/glucose metabolism.
Nathan Goodyear

The Impact of Dietary Organic and Transgenic Soy on the Reproductive System of Female A... - 0 views

onlinelibrary.wiley.com/...full

Genetically Engineered foods GE infertility

shared by Nathan Goodyear on 10 Jan 12 - No Cached
  • Nathan Goodyear on 10 Jan 12
     
    If you are considering getting pregnant, or are pregnant, avoid GE foods.  Genetically Engineered foods are shown, in this study, to cause changes in the uterine lining and reduction in the number of ovarian follicles.  Both of which will contribute/cause infertility.   This study did compare to non GE foods.
Nathan Goodyear

Recent advances in the relationship betwee... [Eur Cytokine Netw. 2006] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...16613757

obesity inflammation insulin resistance IR

shared by Nathan Goodyear on 05 Jan 12 - No Cached
  • Nathan Goodyear on 05 Jan 12
     
    obesity, inflammation and insulin link
Nathan Goodyear

High-dose Vitamin C (Ascorbic Acid) Therapy in the Treatment of Patients with Advanced ... - 0 views

ar.iiarjournals.org/...809.short

IV vitamin C cancer therapy treatment

shared by Nathan Goodyear on 14 Nov 11 - No Cached
  • Nathan Goodyear on 14 Nov 11
     
    vitamin C therapy has been shown to benefit cancer patients in much of the literature, though some research has been published to the contrary. High dose vitamin C IV therapy needs to be re-evaluated as potential therapy in cancer patients
Nathan Goodyear

Safety and Hemodynamic Effects of Intravenous Triiodothyronine in Advanced Congestive H... - 0 views

www.ajconline.org/...abstract

CHF T3 hypothyroid hypothyroidism heart failure

shared by Nathan Goodyear on 31 Jan 12 - No Cached
  • Nathan Goodyear on 31 Jan 12
     
    Patients with CHF often have low T3 levels.  In this study, IV T3 was shown to be safe and well tolerated
Nathan Goodyear

Alzheimer's disease--synergistic effects of ... [J Neural Transm. 1998] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...9720973

AD AGE advanced glycation end products Alzheimer's disease neurofibrillary tangles Beta-amyloid protein microglia brain neurology oxidative stress alzheimer

shared by Nathan Goodyear on 11 Jun 12 - No Cached
  • AGEs are protein modifications that contribute to the formation of the histopathological and biochemical hallmarks of AD: amyloid plaques, neurofibrillary tangles and activated microglia
  • Nathan Goodyear on 11 Jun 12
     
    good review of understanding of how poor glucose control, oxidative stress result in AGE and Alzheimer's disease.
Nathan Goodyear

Updates on Morphea: Role of Vascular Injury and Advances in Treatment - 0 views

www.ncbi.nlm.nih.gov/...PMC3844232

morphea autoimmune disease

shared by Nathan Goodyear on 22 Jan 14 - No Cached
  • Nathan Goodyear on 22 Jan 14
     
    morphea
Nathan Goodyear

Are Short Telomeres Predictive of Advanced Cancer? - 0 views

cancerdiscovery.aacrjournals.org/...1096.abstract

Telomere length prostate cancer

shared by Nathan Goodyear on 10 Jan 14 - No Cached
  • Nathan Goodyear on 10 Jan 14
     
    Telomere length useful as a prognostic marker in prostate cancer as well as in predicting risk.
Nathan Goodyear

An endocrine pathway in the prostate, ERβ, AR, 5α-androstane-3β,17β-diol, and... - 0 views

www.pnas.org/...13589.full

3-beta androstanediol DHT metabolite prostate cancer ER-beta ER beta CYP7b1 cytochrome male hormone hormones men

shared by Nathan Goodyear on 27 Jan 14 - No Cached
  • Although the prostate is an androgen-dependent tissue, estrogens influence both normal functions and pathological changes in this gland
  • This dual action may be due to the existence of two estrogen receptors, ERα and ERβ
  • ERα and ERβ have similar affinities for estradiol-17β
  • ...6 more annotations...
  • In this study we have shown that regulation of the levels of 3βAdiol by CYP7B1 is a key factor in regulation of prostatic growth
  • We provide evidence that proliferating cells in the prostate epithelium have elevated levels of AR and that AR protein but not mRNA levels are regulated by ERβ and its ligand 3βAdiol in the prostate epithelium.
  • because inhibition of 5α-reductase causes accumulation of testosterone and removal of ERβ action increases the level of AR in the prostate, the overall effect of Finasteride would be to favor proliferation of the prostate epithelium
  • studies show that ERβ tends to be lost in advanced prostate cancer.
  • DHEA is converted in the body to 5-androstene-3β,17β-diol, which is also a ligand for estrogen receptors (25, 39) and a substrate for CYP7B1
  • At the peak of proliferation, the proliferating epithelial cells in the ventral prostate expressed high levels of CYP7B1 but had no detectable ERβ, whereas in nonproliferating cells the level of ERβ was high and that of CYP7B1 was low.
  • Nathan Goodyear on 27 Jan 14
     
    3-beta androstanediola, a product of 3alpha-HSD from DHT binds to ER beta and down regulates AR in prostate cancer.  This study proposes that the mechanism is via CYP7B1.  CYP7B1 inactivates 3-beta androstanediol.  Interesting, because 3-beta androstanediol is considered "inactive" when compared to 3-alpha androstanediol and its interaction with ER alpha.  
Teresa conrad

Common Breast Cancer Treatments - 1 views

www.placidway.com/...Breast-Cancer-Treatment-Abroad

cancer

shared by Teresa conrad on 11 Mar 14 - No Cached
Teresa conrad liked it
  • Teresa conrad on 11 Mar 14
     
    A diagnosis of breast cancer can be a devastating bit of news to anyone. However, recent developments in treatments and medical advances that combat breast cancer offer today's women more choices, less discomfort and improved prognosis.
Nathan Goodyear

Long-Acting Octreotide for the Treatment and Symptomatic Relief of Bowel Obstruction in... - 0 views

www.sciencedirect.com/...S0885392405005397

octreotide cancer

shared by Nathan Goodyear on 11 Sep 13 - No Cached
  • Nathan Goodyear on 11 Sep 13
     
    Long term octreotide well tolerated in patients with recurrent ovarian cancer.  
Nathan Goodyear

Symptoms in advanced cancer: relationship to endogenous cortisol levels - 0 views

li123-4.members.linode.com/...genous%20cortisol%20levels.pdf

cortisol cancer

shared by Nathan Goodyear on 16 Sep 13 - No Cached
  • Nathan Goodyear on 16 Sep 13
     
    In people with cancer, increasing cortisol levels associated with increasing symptoms
Nathan Goodyear

Phase II Trial of Curcumin in Patients with Advanced Pancreatic Cancer - 0 views

clincancerres.aacrjournals.org/...4491.long

curcumin tumeric pancreatic cancer cancer

shared by Nathan Goodyear on 17 Sep 13 - No Cached
  • Nathan Goodyear on 17 Sep 13
     
    8 grams of oral curcumin shown to benefit pancreatic cancer.  Down regulation of NF-kappaB and cyclooxygenase-2 over the course of the study.  Result varied, but activity against tumor cells without side effects was seen.
Nathan Goodyear

Testosterone and the Cardiovascular System: A Comprehensive Review of the Clinical Lite... - 0 views

jaha.ahajournals.org/...e000272.full

Testosterone men male cardiovascular disease low T

shared by Nathan Goodyear on 20 Nov 13 - No Cached
  • Low endogenous bioavailable testosterone levels have been shown to be associated with higher rates of all‐cause and cardiovascular‐related mortality.39,41,46–47 Patients suffering from CAD,13–18 CHF,137 T2DM,25–26 and obesity27–28
  • have all been shown to have lower levels of endogenous testosterone compared with those in healthy controls. In addition, the severity of CAD15,17,29–30 and CHF137 correlates with the degree of testosterone deficiency
  • In patients with CHF, testosterone replacement therapy has been shown to significantly improve exercise tolerance while having no effect on LVEF
  • ...66 more annotations...
  • testosterone therapy causes a shift in the skeletal muscle of CHF patients toward a higher concentration of type I muscle fibers
  • Testosterone replacement therapy has also been shown to improve the homeostatic model of insulin resistance and hemoglobin A1c in diabetics26,68–69 and to lower the BMI in obese patients.
  • Lower levels of endogenous testosterone have been associated with longer duration of the QTc interval
  • testosterone replacement has been shown to shorten the QTc interval
  • negative correlation has been demonstrated between endogenous testosterone levels and IMT of the carotid arteries, abdominal aorta, and thoracic aorta
  • These findings suggest that men with lower levels of endogenous testosterone may be at a higher risk of developing atherosclerosis.
  • Current guidelines from the Endocrine Society make no recommendations on whether patients with heart disease should be screened for hypogonadism and do not recommend supplementing patients with heart disease to improve survival.
  • The Massachusetts Male Aging Study also projects ≈481 000 new cases of hypogonadism annually in US men within the same age group
  • since 1993 prescriptions for testosterone, regardless of the formulation, have increased nearly 500%
  • Testosterone levels are lower in patients with chronic illnesses such as end‐stage renal disease, human immunodeficiency virus, chronic obstructive pulmonary disease, type 2 diabetes mellitus (T2DM), obesity, and several genetic conditions such as Klinefelter syndrome
  • A growing body of evidence suggests that men with lower levels of endogenous testosterone are more prone to develop CAD during their lifetimes
  • There are 2 major potential confounding factors that the older studies generally failed to account for. These factors are the subfraction of testosterone used to perform the analysis and the method used to account for subclinical CAD.
  • The biologically inactive form of testosterone is tightly bound to SHBG and is therefore unable to bind to androgen receptors
  • The biologically inactive fraction of testosterone comprises nearly 68% of the total testosterone in human serum
  • The biologically active subfraction of testosterone, also referred to as bioavailable testosterone, is either loosely bound to albumin or circulates freely in the blood, the latter referred to as free testosterone
  • It is estimated that ≈30% of total serum testosterone is bound to albumin, whereas the remaining 1% to 3% circulates as free testosterone
  • it can be argued that using the biologically active form of testosterone to evaluate the association with CAD will produce the most reliable results
  • English et al14 found statistically significant lower levels of bioavailable testosterone, free testosterone, and free androgen index in patients with catheterization‐proven CAD compared with controls with normal coronary arteries
  • patients with catheterization‐proven CAD had statistically significant lower levels of bioavailable testosterone
  • In conclusion, existing evidence suggests that men with CAD have lower levels of endogenous testosterone,13–18 and more specifically lower levels of bioavailable testosterone
  • low testosterone levels are associated with risk factors for CAD such as T2DM25–26 and obesity
  • In a meta‐analysis of these 7 population‐based studies, Araujo et al41 showed a trend toward increased cardiovascular mortality associated with lower levels of total testosterone, but statistical significance was not achieved (RR, 1.25
  • the authors showed that a decrease of 2.1 standard deviations in levels of total testosterone was associated with a 25% increase in the risk of cardiovascular mortality
  • the relative risk of all‐cause mortality in men with lower levels of total testosterone was calculated to be 1.35
  • higher risk of cardiovascular mortality is associated with lower levels of bioavailable testosterone
  • Existing evidence seems to suggest that lower levels of endogenous testosterone are associated with higher rates of all‐cause mortality and cardiovascular mortality
  • studies have shown that lower levels of endogenous bioavailable testosterone are associated with higher rates of all‐cause and cardiovascular mortality
  • It may be possible that using bioavailable testosterone to perform mortality analysis will yield more accurate results because it prevents the biologically inactive subfraction of testosterone from playing a potential confounding role in the analysis
  • The earliest published material on this matter dates to the late 1930s
  • the concept that testosterone replacement therapy improves angina has yet to be proven wrong
  • In more recent studies, 3 randomized, placebo‐controlled trials demonstrated that administration of testosterone improves myocardial ischemia in men with CAD
  • The improvement in myocardial ischemia was shown to occur in response to both acute and chronic testosterone therapy and seemed to be independent of whether an intravenous or transdermal formulation of testosterone was used.
  • testosterone had no effect on endothelial nitric oxide activity
  • There is growing evidence from in vivo animal models and in vitro models that testosterone induces coronary vasodilation by modulating the activity of ion channels, such as potassium and calcium channels, on the surface of vascular smooth muscle cells
  • Experimental studies suggest that the most likely mechanism of action for testosterone on vascular smooth muscle cells is via modulation of action of non‐ATP‐sensitive potassium ion channels, calcium‐activated potassium ion channels, voltage‐sensitive potassium ion channels, and finally L‐type calcium ion channels
  • Corona et al confirmed those results by demonstrating that not only total testosterone levels are lower among diabetics, but also the levels of free testosterone and SHBG are lower in diabetic patients
  • Laaksonen et al65 followed 702 Finnish men for 11 years and demonstrated that men in the lowest quartile of total testosterone, free testosterone, and SHBG were more likely to develop T2DM and metabolic syndrome.
  • Vikan et al followed 1454 Swedish men for 11 years and discovered that men in the highest quartile of total testosterone were significantly less likely to develop T2DM
  • authors demonstrated a statistically significant increase in the incidence of T2DM in subjects receiving gonadotropin‐releasing hormone antagonist therapy. In addition, a significant increase in the rate of myocardial infarction, stroke, sudden cardiac death, and development of cardiovascular disease was noted in patients receiving antiandrogen therapy.67
  • Several authors have demonstrated that the administration of testosterone in diabetic men improves the homeostatic model of insulin resistance, hemoglobin A1c, and fasting plasma glucose
  • Existing evidence strongly suggests that the levels of total and free testosterone are lower among diabetic patients compared with those in nondiabetics
  • insulin seems to be acting as a stimulant for the hypothalamus to secret gonadotropin‐releasing hormone, which consequently results in increased testosterone production. It can be argued that decreased stimulation of the hypothalamus in diabetics secondary to insulin deficiency could result in hypogonadotropic hypogonadism
  • BMI has been shown to be inversely associated with testosterone levels
  • This interaction may be a result of the promotion of lipolysis in abdominal adipose tissue by testosterone, which may in turn cause reduced abdominal adiposity. On the other hand, given that adipose tissue has a higher concentration of the enzyme aromatase, it could be that increased adipose tissue results in more testosterone being converted to estrogen, thereby causing hypogonadism. Third, increased abdominal obesity may cause reduced testosterone secretion by negatively affecting the hypothalamus‐pituitary‐testicular axis. Finally, testosterone may be the key factor in activating the enzyme 11‐hydroxysteroid dehydrogenase in adipose tissue, which transforms glucocorticoids into their inactive form.
  • increasing age may alter the association between testosterone and CRP. Another possible explanation for the association between testosterone level and CRP is central obesity and waist circumference
  • Bai et al have provided convincing evidence that testosterone might be able to shorten the QTc interval by augmenting the activity of slowly activating delayed rectifier potassium channels while simultaneously slowing the activity of L‐type calcium channels
  • consistent evidence that supplemental testosterone shortens the QTc interval.
  • Intima‐media thickness (IMT) of the carotid artery is considered a marker for preclinical atherosclerosis
  • Studies have shown that levels of endogenous testosterone are inversely associated with IMT of the carotid artery,126–128,32,129–130 as well as both the thoracic134 and the abdominal aorta
  • 1 study has demonstrated that lower levels of free testosterone are associated with accelerated progression of carotid artery IMT
  • another study has reported that decreased levels of total and bioavailable testosterone are associated with progression of atherosclerosis in the abdominal aorta
  • These findings suggest that normal physiologic testosterone levels may help to protect men from the development of atherosclerosis
  • Czesla et al successfully demonstrated that the muscle specimens that were exposed to metenolone had a significant shift in their composition toward type I muscle fibers
  • Type I muscle fibers, also known as slow‐twitch or oxidative fibers, are associated with enhanced strength and physical capability
  • It has been shown that those with advanced CHF have a higher percentage of type II muscle fibers, based on muscle biopsy
  • Studies have shown that men with CHF suffer from reduced levels of total and free testosterone.137 It has also been shown that reduced testosterone levels in men with CHF portends a poor prognosis and is associated with increased CHF mortality.138 Reduced testosterone has also been shown to correlate negatively with exercise capacity in CHF patients.
  • Testosterone replacement therapy has been shown to significantly improve exercise capacity, without affecting LVEF
  • the results of the 3 meta‐analyses seem to indicate that testosterone replacement therapy does not cause an increase in the rate of adverse cardiovascular events
  • Data from 3 meta‐analyses seem to contradict the commonly held belief that testosterone administration may increase the risk of developing prostate cancer
  • One meta‐analysis reported an increase in all prostate‐related adverse events with testosterone administration.146 However, when each prostate‐related event, including prostate cancer and a rise in PSA, was analyzed separately, no differences were observed between the testosterone group and the placebo group
  • the existing data from the 3 meta‐analyses seem to indicate that testosterone replacement therapy does not increase the risk of adverse cardiovascular events
  • the authors correctly point out the weaknesses of their study which include retrospective study design and lack of randomization, small sample size at extremes of follow‐up, lack of outcome validation by chart review and poor generalizability of the results given that only male veterans with CAD were included in this study
    • Nathan Goodyear
      Nathan Goodyear on 04 Dec 13
       
      The authors here present Total Testosterone as a "confounding" value
    • Nathan Goodyear
      Nathan Goodyear on 09 Dec 13
       
      This would be HSD-II
  • the studies that failed to find an association between testosterone and CRP used an older population group
  • low testosterone may influence the severity of CAD by adversely affecting the mediators of the inflammatory response such as high‐sensitivity C‐reactive protein, interleukin‐6, and tumor necrosis factor–α
  • Nathan Goodyear on 20 Nov 13
     
    Good review of Testosterone and CHD.  Low T is associated with increased all cause mortality and cardiovascular mortality, CAD, CHF, type II diabetes, obesity, increased IMT,  increased severity of CAD and CHF.  Testosterone replacement in men with low T has been shown to improve exercise tolerance in CHF, improve insulin resistance, improve HgbA1c and lower BMI in the obese.
Nathan Goodyear

Efficacy of the Progesterone Receptor Antagonist Mifepristone for Palliative Therapy of... - 0 views

ar.iiarjournals.org/...623.full

progesterone receptor progesterone receptor progesterone receptors mifepristone cancer

shared by Nathan Goodyear on 09 Jun 14 - No Cached
  • Nathan Goodyear on 09 Jun 14
     
    Another study points to mifepristone in the benefit of progesterone receptor blockade in late stage cancer.
Nathan Goodyear

BMC Microbiology | Full text | The Firmicutes / Bacteroidetes ratio of the human microb... - 0 views

www.biomedcentral.com/...123

gut flora gut microbiome gut microbiota firmicutes bacteroidetes firmicutes_bacteroidetes health gut microbiome

shared by Nathan Goodyear on 06 May 15 - No Cached
  • The microbiota of the large intestine plays an important role in host metabolism and maintenance of host health
  • Our results defining a standard adult profile, together with previous reports, showed that C. leptum, C. coccoides, Bacteroides and Bifidobacterium represent the four dominant groups of the adult fecal microbiota
  • Sub-dominant groups are Lactobacilli Enterobacteriaceae, Desulfovibrio, Sporomusa, Atopobium as well as other bacterial groups including Clostridium clusters XI, XIVb, and XVIII
  • ...12 more annotations...
  • In infant fecal microbiota, we observed Bifidobacterium as the dominant group
  • this observation is strongly related to diet, being enhanced by breast feeding
  • Significant higher numbers of Bifidobacterium were observed in infants versus adults and seniors
  • the gastrointestinal tract is first colonized by facultative anaerobes, such as E. coli
  • Strict anaerobes, such as Clostridium, colonize at later stages, as can be seen by the relatively low levels of C. leptum and C. coccoides in infants
  • diet change must be considered among the primary causes for such a shift of microbiota between infants and adults.
  • In the case of elderly subjects, our qPCR results indicated a significant increase in the counts of E. coli when compared to adults. This data is consistent with other publications indicating that elderly subjects harbor a different E. coli microbiota profile compared to younger adults
  • a number of authors reported a reduction in the numbers and diversity of many protective commensal anaerobes, such as Bacteroides and Bifidobacteria
  • The Firmicutes to Bacteroidetes ratio was already shown to be of significant relevance in signaling human gut microbiota status
  • Our measurements of the Firmicutes/Bacteroidetes ratio in adults obtained by our species-specific qPCR are in agreement with those obtained by Ley et al
  • Compared with young adults, the elderly have a different digestive physiology, characterized at a physiological level by a reduction in transit and of digestive secretions
  • The Firmicutes/Bacteroidetes ratio undergoes an increase from birth to adulthood and is further altered with advanced age
  • Nathan Goodyear on 06 May 15
     
    Good discussion of the gut microbiome.  Age effects the gut bacteria balance.  The Firmicutes/Bacteroidetes ratio increases from young, to young adult, to the elderly in this study.  Is this simply a reflection of aging or is the a biomarker that can be changed through diet and targeted probiotics?
« First ‹ Previous 101 - 120 of 252 Next › Last »
Showing 20▼ items per page